A smart key box is a smart key storage lock box that can save house and car keys, access cards, and more for easy retrieval. It is designed with Bluetooth and the biometric fingerprint identification function. Bluetooth app-controlled lock box allows phone app unlock, key sharing, and unlock time tracking. Fingerprint unlock smart key lock box has a more easy and safe way to unlock. This intelligent key box can be widely used on the house, rental apartments, hotels, private club lockers, sharing bikes, sharing cars, safes, and so on.